Saotome, Hina

早乙女陽菜

She is an ordinary woman who handles accounting at the company where she works. One day, she is suddenly arrested on charges of embezzlement and sentenced to one year in Black Wing prison. Her prisoner number is "3077".
She has long, wavy brown hair. Her parents died in an accident, leaving her all alone, but her boyfriend, Yakumo Kiyonori, serves as her emotional support. In addition to the dangerous environment of only male prisoners, she endures harsh days as Aki Myoujin toys with both her mind and body.